The Tor Browser: browser/components/sessionstore/test/browser

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* Any copyright is dedicated to the Public Domain.

     2    http://creativecommons.org/publicdomain/zero/1.0/ */

     4 function test() {

     5   let assertNumberOfTabs = function (num, msg) {

     6     is(gBrowser.tabs.length, num, msg);

     7   }

     9   let assertNumberOfVisibleTabs = function (num, msg) {

    10     is(gBrowser.visibleTabs.length, num, msg);

    11   }

    13   let assertNumberOfPinnedTabs = function (num, msg) {

    14     is(gBrowser._numPinnedTabs, num, msg);

    15   }

    17   waitForExplicitFinish();

    19   // check prerequisites

    20   assertNumberOfTabs(1, "we start off with one tab");

    22   // setup

    23   let tab = gBrowser.addTab("about:mozilla");

    25   whenTabIsLoaded(tab, function () {

    26     // hide the newly created tab

    27     assertNumberOfVisibleTabs(2, "there are two visible tabs");

    28     gBrowser.showOnlyTheseTabs([gBrowser.tabs[0]]);

    29     assertNumberOfVisibleTabs(1, "there is one visible tab");

    30     ok(tab.hidden, "newly created tab is now hidden");

    32     // close and restore hidden tab

    33     gBrowser.removeTab(tab);

    34     tab = ss.undoCloseTab(window, 0);

    36     // check that everything was restored correctly, clean up and finish

    37     whenTabIsLoaded(tab, function () {

    38       is(tab.linkedBrowser.currentURI.spec, "about:mozilla", "restored tab has correct url");

    40       gBrowser.removeTab(tab);

    41       finish();

    42     });

    43   });

    44 }

    46 function whenTabIsLoaded(tab, callback) {

    47   tab.linkedBrowser.addEventListener("load", function onLoad() {

    48     tab.linkedBrowser.removeEventListener("load", onLoad, true);

    49     callback();

    50   }, true);

    51 }

The Tor Browser / file revision